Is Waitrose Belgian Chocolate Cake Soy Free?

Ingredients
Sugar, dark chocolate (18%) (cocoa mass, sugar, cocoa butter, milk fat, emulsifier (soya lecithin), vanilla extract, flavouring), pasteurised free range egg, wheat flour (wheat flour, calcium carbonate, iron, niacin, thiamin), rapeseed oil, unsalted butter (milk), humectant (vegetable glycerol), single cream (milk), partially inverted sugar syrup, fat reduced cocoa powder, tapioca starch, white chocolate (sugar, cocoa butter, whole milk powder, lactose (milk), milk whey powder, emulsifier (soya lecithin), flavouring), dried glucose syrup, glucose syrup, water, cornflour, milk chocolate (sugar, cocoa mass, whole milk powder, cocoa butter, emulsifier (sunflower lecithin)), raising agents (disodium diphosphate, sodium hydrogen carbonate), acidity regulators (sodium hydroxide, potassium carbonate, citric acid), emulsifier (mono - and diglycerides of fatty acids), pasteurised free range egg white powder, salt


